The Constitution DOES NOT say "anyone born in the USA is a citizen"
It says "anyone born in the USA AND UNDER THE LAWS AND JURISDICTIONS OF, is a citizen" (forgive me if i don't have it exact)
That is clearly NOT THE SAME as "anyone born here is a citizen"
Clearly anyone who rushed to the USA to give birth just to claim citizenship was not the intention of the framers, or they would not have included that cause.
Just STOP treating them as citizens. Announce that it will be his administration policy to more correctly interpret the constitution that way, and order everyone NOT TO give out USA birth certificates to anyone who cannot prove they are here legally.
AND announce that he will strictly follow ALL immigration laws that Mexico has. (that will make liberals' heads explode)
great point